PHOENIX (3TV/CBS 5) -- The Arizona Department of Health Services' weekly report showed a 351 percent increase of flu cases for the 2019-2020 season from last season.
The data from ADHS shows that just in the past week, there have been 733 reported flu cases. At this time last year, there were only 175 reported cases.
The first day of the 2019-2020 flu season was Sept. 29, 2019. So far, this flu season has seen 2,377 flu cases compared to 527 last year.
ADHS produces weekly reports on influenza to track the level of case activity, learn where the flu is occurring in the state as well as who is affected.
According to ADHS, an average of 5 to 20 percent of Arizona's population gets the flu each year. About 4,000 Arizonans are hospitalized with the flu and about 700 die from the flu each year.
The CDC and ADHS both say that the best way to prevent the flu is to get a yearly flu shot.